add_executable(1_Calculation_of_N__layer_Nested_Square_Roots "1_Calculation_of_N__layer_Nested_Square_Roots.c")
add_executable(2_Sum_Up_by_Recursion "2_Sum_Up_by_Recursion.c")
add_executable(3_Monkey_Eat_Peach_Extension_3 "3_Monkey_Eat_Peach_Extension_3.c")
add_executable(4_Online_Shopping_for_Discounted_Products "4_Online_Shopping_for_Discounted_Products.c")
